<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>canvas clock</title>
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <style>
        .clock{
            margin: 150px auto;
            text-align: center;
        }
    </style>
</head>
<body>
<div class="clock">
    <canvas id="canvas" width="300" height="300"></canvas>
</div>
<script src="clock.js"></script>
</body>
</html>